Search Results for author: Xiang Lan

Found 6 papers, 2 papers with code

Learning the Unlearned: Mitigating Feature Suppression in Contrastive Learning

no code implementations19 Feb 2024 Jihai Zhang, Xiang Lan, Xiaoye Qu, Yu Cheng, Mengling Feng, Bryan Hooi

Self-Supervised Contrastive Learning has proven effective in deriving high-quality representations from unlabeled data.

Contrastive Learning

A Survey of Large Language Models for Healthcare: from Data, Technology, and Applications to Accountability and Ethics

1 code implementation9 Oct 2023 Kai He, Rui Mao, Qika Lin, Yucheng Ruan, Xiang Lan, Mengling Feng, Erik Cambria

This shift encompasses a move from discriminative AI approaches to generative AI approaches, as well as a shift from model-centered methodologies to datacentered methodologies.

Ethics Fairness

P-Transformer: A Prompt-based Multimodal Transformer Architecture For Medical Tabular Data

no code implementations30 Mar 2023 Yucheng Ruan, Xiang Lan, Daniel J. Tan, Hairil Rizal Abdullah, Mengling Feng

While deep learning approaches, particularly transformer-based models, have shown remarkable performance in tabular data prediction, there are still problems remained for existing work to be effectively adapted into medical domain, such as under-utilization of unstructured free-texts, limited exploration of textual information in structured data, and data corruption.

Multimodal Deep Learning Sentence

Towards Enhancing Time Series Contrastive Learning: A Dynamic Bad Pair Mining Approach

1 code implementation7 Feb 2023 Xiang Lan, Hanshu Yan, Shenda Hong, Mengling Feng

In this paper, we study two types of bad positive pairs that can impair the quality of time series representation learned through contrastive learning: the noisy positive pair and the faulty positive pair.

Contrastive Learning Representation Learning +2

Intra-Inter Subject Self-supervised Learning for Multivariate Cardiac Signals

no code implementations18 Sep 2021 Xiang Lan, Dianwen Ng, Shenda Hong, Mengling Feng

In inter subject self-supervision, we design a set of data augmentations according to the clinical characteristics of cardiac signals and perform contrastive learning among subjects to learn distinctive representations for various types of patients.

Contrastive Learning Self-Supervised Learning +1

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